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101 CN111123507A
一种同步扫描旋转双棱镜装置及其一维扫描方法
Under Examination
Publication/Patent Number: CN111123507A Publication Date: 2020-05-08 Application Number: 201911195426.6 Filing Date: 2019-11-28 Inventor: 余永朝   左小涛   Assignee: 武汉华中天经通视科技有限公司   IPC: G02B26/10 Abstract: 本发明公开了一种一维同步扫描旋转双棱镜装置和一维扫描方法,通过轴系固定安装的四个对称均布的锥面齿轮实现两片棱镜的传动和同步,达到同步反向等幅转动的目的;扫描模式下,为消除空回对精度的影响,控制两个棱镜只朝一个方向连续旋转,出射光束在一维方向来回扫描,通过控制棱镜转角θ的时间特性来调制扫描的时间特性;本发明仅用一个电机和一个测角传感器即可实现两个楔形棱镜的驱动和位置反馈,减少电机和测角传感器数量,仅有一个电压控制量和角度反馈量,具有简洁的正向和反向解析解,解算和控制简单方便。
102 CN111077668A
一种大幅面激光扫描系统的校正方法
Public
Publication/Patent Number: CN111077668A Publication Date: 2020-04-28 Application Number: 201911413737.5 Filing Date: 2019-12-31 Inventor: 王建刚   董义   徐章地   王亮   周宇   李创业   Assignee: 江苏华工激光科技有限公司   IPC: G02B26/10 Abstract: 本发明属于激光精密加工技术领域,具体提供了一种大幅面激光扫描系统的校正方法,包括:获取激光扫描系统的成像坐标幅面的理论坐标系,在所述成像坐标幅面上设置阵列标记以均匀等分所述成像幅面;在所述激光扫描系统的激光聚焦平面处设置平板,根据阵列标记在理论坐标系中的坐标调整激光参数射出激光,将所述阵列标记的各标记点一一对应打标至所述平板上;扫描所述平板得到带有打标点的电子图像;获取所述电子图像中各所述打标点的实际坐标系,将所述实际坐标系与理论坐标进行比对,并输出所述理论坐标系中各标记点的校正补偿值。该方案成本低廉,不受机械结构本身对校正精度的影响,更不会引入新的影响校正精度的因素,随时随地可以进行校正。
103 CN211149067U
一种基于MEMS微振镜结构的激光扫描生成设备
Valid
Publication/Patent Number: CN211149067U Publication Date: 2020-07-31 Application Number: 201922289168.X Filing Date: 2019-12-18 Inventor: 程进   徐乃涛   孙其梁   李宋泽   Assignee: 无锡微视传感科技有限公司   IPC: G02B26/10 Abstract: 一种基于MEMS微振镜结构的激光扫描生成设备,包括激光发射器、透镜单元、MEMS微振镜、反射单元、反馈结构和核心控制器,所述激光发射器发出点激光投射到透镜单元上,形成准直点激光或均匀线激光,投射到所述MEMS微振镜上,生成线结构光或面结构光,部分线结构光或面结构光被反射单元反射至所述反馈结构,反馈结构传输MEMS微振镜位置信息至核心控制器,核心控制器实时控制激光发射器和MEMS微振镜,投射目标图案。本方案通过设置反射单元改变光路,将反馈结构与MEMS微振镜集成在一起,从而缩小设备体积、降低装配难度,具有精度高、装配难度小、一体化程度高及稳定性好的优点。
104 CN111338077A
一种光纤扫描器、光纤扫描系统及驱动方法
Under Examination
Publication/Patent Number: CN111338077A Publication Date: 2020-06-26 Application Number: 201811553284.1 Filing Date: 2018-12-19 Inventor: 岳钟宇   王重阳   Assignee: 成都理想境界科技有限公司   IPC: G02B26/10 Abstract: 本发明公开了一种光纤扫描器、光纤扫描系统及驱动方法,用于降低光纤扫描器中光纤断裂的风险。所述光纤扫描器包括致动器和固定在致动器上的光纤,所述光纤的一端超出所述致动器形成光纤悬臂;所述致动器在驱动信号的作用下能同时产生第一方向和第二方向的振动,并带动所述光纤悬臂在所述第一方向和所述第二方向的合成方向上扫动;所述驱动信号中包含所述第一方向对应的第一预设驱动频率及所述第二方向对应的第二预设驱动频率,所述第一预设驱动频率大于等于所述第二预设驱动频率,所述光纤悬臂的N阶固有频率与所述第一预设驱动频率之间的差值处于第一阈值范围内,所述N为大于等于2的整数。
105 CN111190283A
一种扫描镜监测系统及方法
Under Examination
Publication/Patent Number: CN111190283A Publication Date: 2020-05-22 Application Number: 202010108275.2 Filing Date: 2020-02-21 Inventor: 周兴   王兆民   马宣   孙瑞   杨神武   Assignee: 深圳奥比中光科技有限公司   IPC: G02B26/10 Abstract: 本发明公开了一种扫描镜监测系统,包括控制器和扫描装置;其中,控制器包括处理器以及控制电路;扫描装置包括光学发射器/接收器以及扫描组件;所述处理器用于向控制电路发送命令控制输出;所述控制电路接收扫描组件的信号并根据处理器的命令控制输出;所述发射器/接收器用于向扫描组件发射光脉冲并接收反馈回的光信息;所述扫描组件用于将接收的光脉冲向外投射以及监测扫描装置的工作状态,并将监测信号发送至控制电路,其包括有安装框架、设置于安装框架上的扫描镜、触点以及与触点连接的监测电路。本发明通过对扫描组件进行实时监控,在系统出现异常或损坏时停止其工作、发起检查和矫正,可有效地保证人眼的安全,避免事故的发生。
106 CN111721410A
一种移动单个原子位置的系统和方法
Public
Publication/Patent Number: CN111721410A Publication Date: 2020-09-29 Application Number: 202010524157.X Filing Date: 2020-06-10 Inventor: 郭龑强   张江江   郭晓敏   Assignee: 太原理工大学   IPC: G01J1/44 Abstract: 本发明涉及原子操控技术领域,具体涉及一种移动单个原子位置的系统和方法,系统包括激光器,激光器发出的激光依次经声光调制器、双轴扫描振镜、偏振分束棱镜、透镜组、45度全反镜和非球面镜后在真空玻璃气室内聚焦形成尺寸小于2um的腰斑;三维平移台用于微调腰斑位置,使其与磁光阱系统形成的原子俘获区域重合形成光学偶极阱并装载单个原子;光学偶极阱中的单个原子发出的荧光经非球面镜、两个45度全反镜,透镜组、偏振分束棱镜和干涉滤波片后被单光子探测器探测;双轴扫描振镜用于通过调节激光束的偏转角度实现光学偶极阱中单个原子的移动。本发明结构简单,占用空间少,调节方便,可以在200μm的范围内移动原子。
107 US10775611B2
Techniques for improving a fiber scanning system
Publication/Patent Number: US10775611B2 Publication Date: 2020-09-15 Application Number: 16/675,074 Filing Date: 2019-11-05 Inventor: Dalrymple, Timothy Mark   Lopez, Alejandro   Jones, Jr. William K.   Duenner, Andrew C.   Assignee: Magic Leap, Inc.   IPC: G02B26/10 Abstract: A fiber scanning system includes an actuator configured to have an actuator natural frequency, and a fiber optic scanning element coupled to the actuator. The fiber optic scanning element is configured to have a fiber natural frequency that is within a threshold of the actuator natural frequency, such that a displacement gain of the fiber optic scanning element as a function of operating frequency exhibits a first peak value at a first resonance frequency less than the fiber natural frequency, and a second peak value at a second resonance frequency greater than the fiber natural frequency.
108 US10739579B2
Method of processing calibration data in 3D laser scanner systems
Publication/Patent Number: US10739579B2 Publication Date: 2020-08-11 Application Number: 16/388,613 Filing Date: 2019-04-18 Inventor: Small, Jay   Gross, Ken   Errico, Vito P.   Assignee: nLIGHT, Inc.   IPC: G02B26/10 Abstract: A method includes determining a set of pattern position errors between (i) a set of expected pattern positions of a calibration pattern on a laser target situated in a laser processing field of a laser system and produced based on a set of initial scan optic actuation corrections associated with a scan optic of the laser system and (ii) a set of measured pattern positions of the calibration pattern, determining a set of scan optic actuation rates based on the set of initial scan optic actuation corrections, and updating the set of initial scan optic actuation corrections based on the set of scan optic actuation rates and the set of pattern position errors so as to form a set of updated scan optic actuation corrections that is associated with a reduction of at least a portion of the set of pattern position errors.
109 US2020182981A1
LIGHT DETECTION AND RANGING SYSTEM AND METHOD
Publication/Patent Number: US2020182981A1 Publication Date: 2020-06-11 Application Number: 16/706,963 Filing Date: 2019-12-09 Inventor: Sy, Williamson S.   Jefferson, Aaron M.   Das, Neil   Filipinas, Enervon   Assignee: ZF ACTIVE SAFETY AND ELECTRONICS US LLC   IPC: G01S7/481 Abstract: A light detection and ranging system includes at least one laser that emits a laser beam. A beam steering device steers beams emitted by the laser at a desired angle. A curved mirror reflects the steered beams at any desired angle or direction. A method of providing a light detection and ranging system is also provided.
110 US2020166676A1
Optical Element Control
Publication/Patent Number: US2020166676A1 Publication Date: 2020-05-28 Application Number: 16/636,999 Filing Date: 2017-08-14 Inventor: Anderson, Alan   Ashok, Praveen   Kasai, Hiroshi   Gorman, Alistair   Assignee: Optos PLC   IPC: G02B3/14 Abstract: An optical system comprising: an optical element having an optical property responsive to an applied signal, a variation of the optical property with the signal exhibiting hysteresis in a first range of values and no hysteresis in a second range of values of the signal; a memory storing data representing a hysteresis curve which indicates the variation of the optical property with increasing and decreasing values of the signal; and a controller which continuously controls the optical property by: generating, based on the stored data, a cyclic signal having a discontinuity in each cycle of the cyclic signal, and setting the discontinuity size in each cycle based on the stored data such that a part of the variation of the optical property with the cyclic signal coincides with a part of the variation represented by the stored data; and applying the cyclic signal to the optical element.
111 US2020057299A1
OPTICAL SCANNING APPARATUS AND IMAGE FORMING APPARATUS
Publication/Patent Number: US2020057299A1 Publication Date: 2020-02-20 Application Number: 16/540,361 Filing Date: 2019-08-14 Inventor: Teramura, Masayasu   Miyajima, Yu   Assignee: CANON KABUSHIKI KAISHA   IPC: G02B26/10 Abstract: An optical scanning apparatus includes first and second deflecting units, and first and second imaging optical systems to guide first and second light fluxes deflected by the first and second deflecting units to first and second scanned surfaces. The first and second imaging optical systems include first and second imaging elements having the largest refractive power in a sub-scanning section. A distance on an optical path between the first deflecting unit and the first imaging element is shorter than that between the second deflecting unit and the second imaging element. The optical scanning apparatus satisfies: - d 2 N 2  φ 21 φ 2 < - d 1 N 1  φ 11 φ 1 , where N1, d1, ϕ1, and ϕ11 are a refractive index, a thickness on an optical axis, a refractive power in a sub-scanning section, and a refractive power in the sub-scanning section of an incident surface, of the first imaging element, and N2, d2, ϕ2, and ϕ21 are equivalents of the second imaging element.
112 US2020218059A1
A DEVICE AND METHOD FOR POSITIONING A MOVEABLE MEMBER, AND A STEERABLE MIRROR UNIT INCLUDING SUCH DEVICE
Publication/Patent Number: US2020218059A1 Publication Date: 2020-07-09 Application Number: 16/648,718 Filing Date: 2018-09-20 Inventor: Kuiper, Stefan   Assignee: Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO   IPC: G02B26/08 Abstract: A device and method for pivotally positioning a moveable member, wherein a magnetically conductive base member is arranged opposite the magnetically conductive moveable member with a gap provided therebetween. A first magnet is arranged for providing a first magnetic flux through the base member and the moveable member such as to provide at least two first magnetic closed flux paths. A second electromagnet is arranged for providing a second magnetic flux through the base member and the moveable member such as to provide at least one second magnetic closed flux path. The second electromagnet is configured for changing, in one or more of the at least two first magnetic closed flux paths, a resulting magnetic flux provided by the first magnetic flux and the second magnetic flux such as to pivot the moveable member by means of the pivot member. The moveable member is pivotally suspended using a flexural pivot member.
113 EP3652579A1
METHOD FOR CALIBRATING A PROJECTION DEVICE FOR A HEAD-MOUNTED DISPLAY, AND PROJECTION DEVICE FOR A HEAD-MOUNTED DISPLAY FOR CARRYING OUT THE METHOD
Publication/Patent Number: EP3652579A1 Publication Date: 2020-05-20 Application Number: 18734175.5 Filing Date: 2018-06-21 Inventor: Petersen, Andreas   Graf, Tobias   Assignee: Robert Bosch GmbH   IPC: G02B26/10
114 CN210165908U
一种水下真彩色三维扫描系统
Valid
Title (English): An Underwater True Color 3D Scanning System
Publication/Patent Number: CN210165908U Publication Date: 2020-03-20 Application Number: 201822248816.2 Filing Date: 2018-12-29 Inventor: 杨宇   董会   温亚楠   孔倩倩   朱建鑫   Assignee: 青岛市光电工程技术研究院(中国科学院光电研究院青岛光电工程技术研究中心)   IPC: G01B11/24 Abstract: 本实用新型公布了一种水下真彩色三维扫描系统,包括移动平台、光杠、滑块、光源箱、R激光器、R渐变衰减片、R渐变衰减片驱动电机、G激光器、G渐变衰减片、G渐变衰减片驱动电机、B激光器、B渐变衰减片、B渐变衰减片驱动电机、第一反射镜、第一分光镜、第二分光镜、第二反射镜、半柱面镜、玻璃窗口、数字相机、计算机;本实用新型利用反射镜和分光镜的设计将三基色激光合成一束光线,省去了三基色激光未合成一束光线时,三基色激光垂直下依次对目标扫描,在数字处理时依据三线间的距离合成彩色的步骤,计信息算量小,从而更加快速的获得水下目标的彩色三维信息,能够实现对水下目标的真彩色三维重建,颜色可现场标定,降低水质对色彩还原的影响。
115 CN111007663A
一种激光扫描显示方法及系统
Invalid
Publication/Patent Number: CN111007663A Publication Date: 2020-04-14 Application Number: 202010155102.6 Filing Date: 2020-03-09 Inventor: 杨濛   Assignee: 瑞声通讯科技(常州)有限公司   IPC: G02B26/08 Abstract: 本发明提供了一种激光扫描显示方法。本发明的步骤包括:激光束经偏振调制器周期性地调制为S偏振光或P偏振光;所述S偏振光和所述P偏振光经偏振分光棱镜分光而沿异向光路射出;所述S偏振光或所述P偏振光经反射组件反射至周期性振动的MEMS微反射镜,再反射到投影屏或人眼的视网膜上成像;且所述S偏振光与P偏振光交替入射至MEMS微反射镜的光路方向之间的夹角为ɑ,且满足关系式ɑ≠0。使得本发明可以在不增加MEMS微反射镜的机械摆动角度的情况获得两倍于现有技术的光学扫描范围,获得更大的视场角,提升沉浸感,提高观看体验。
116 CN105572863B
光学器件及图像显示装置
Publication/Patent Number: CN105572863B Publication Date: 2020-04-14 Application Number: 201510703678.0 Filing Date: 2015-10-26 Inventor: 儿岛长子   沟口安志   若林慎一   Assignee: 精工爱普生株式会社   IPC: G02B26/10 Abstract: 本发明提供光学器件及图像显示装置,光学器件小型且所产生的应力小,图像显示装置具备该光学器件并能高画质显示。光路偏转元件(光学器件)的功能部(200)的特征在于,具备:光学部(202),具有光所射入的光入射面;可动部(204),支撑光学部(202);轴部(206),支撑可动部(204)并使其可摆动;以及固定部(208),与轴部(206)连接,固定部(208)包括厚度比轴部(206)大、且未与轴部(206)连接的端部为自由端的部分。轴部(206)具有可扭性,并且固定部(208)至少在厚度方向上具有可挠性。
117 CN109445082B
一种共焦扫面显微镜光源调制方法
Valid
Publication/Patent Number: CN109445082B Publication Date: 2020-05-01 Application Number: 201811527017.7 Filing Date: 2018-12-13 Inventor: 张金莲   张杰   Assignee: 南京智博医疗器械有限公司   IPC: G02B21/00 Abstract: 本发明公开了一种共焦扫面显微镜光源调制方法,包括如下步骤:对正交方向上的慢速线性扫描方向上的光源功率进行调制的步骤;利用该慢速扫描方向的调制信号直接控制光源;或通过光源功率调制器调制光源输出端功率;或将上述两种调制方式相结合对所述光源进行调制。采用本发明,能够实现使样本表面的光辐射量达到最小化的目的。
118 CN108227181B
一种阵列转镜的光束扫描装置
Valid
Publication/Patent Number: CN108227181B Publication Date: 2020-06-16 Application Number: 201711294524.6 Filing Date: 2017-12-08 Inventor: 付立鼎   史光远   李松   Assignee: 华为技术有限公司   IPC: G02B26/10 Abstract: 本申请公开了一种阵列转镜的光束扫描装置,它包括电机(1)、蜗杆(2)、蜗轮(3)、安装架(4)、以及转镜(5);所述蜗杆(2)以及所述蜗轮(3)位于所述安装架(4)上并通过齿轮(11)相互咬合联动连接;所述转镜(5)位于所述安装架(4)内,并与所述蜗轮(3)同轴连接;所述电机(1)用于驱动所述蜗杆(2)转动,以带动所述所述蜗轮(3)以及转镜(5)同轴转动,可替换不同结构光学参数的转镜(5)来调整光束扫描装置的性能输出,以提高可扩展性,且能够降低解决传统光束扫描装置中体积大、转动惯量大和功耗高等问题,大幅度提高系统的空间利用率和稳定性,尤其适用于无人车和智能机器人用途的小型化激光雷达应用。
119 CN210864180U
同轴多波段反射式消像旋光学系统
Valid
Publication/Patent Number: CN210864180U Publication Date: 2020-06-26 Application Number: 201921707100.2 Filing Date: 2019-10-12 Inventor: 杜晓宇   杨加强   彭晴晴   李江勇   王诚   Assignee: 中国电子科技集团公司第十一研究所   IPC: G02B17/08 Abstract: 本实用新型公开了一种同轴多波段反射式消像旋光学系统,同轴多波段反射式消像旋光学系统包括:扫描件;成像组件,成像组件与扫描件沿第一方向间隔设置;反射组件,反射组件可旋转地设置于扫描件与成像组件之间;光线经扫描件后入射至反射组件,光线在反射组件内多次反射后入射至成像组件。采用本实用新型,利用反射组件对光线进行多次反射,以实现消像旋功能,不仅可以使得该消像旋光学系统适用于多波段光线,还可以保证该消像旋光学系统的光学性能和高质量像质。
120 CN210924167U
一种光学致动器的悬吊组件
Valid
Publication/Patent Number: CN210924167U Publication Date: 2020-07-03 Application Number: 201922393395.7 Filing Date: 2019-12-26 Inventor: 钟波   肖适   尹蕾   江滔   Assignee: 成都极米科技股份有限公司   IPC: G03B21/14 Abstract: 本实用新型公开一种光学致动器的悬吊组件,包括外固定部、中框和内框,所述的内框中部开设与镜片配合的透光孔,所述内框的两对侧分别通过第一扭臂与中框连接以使内框能够沿着两个第一扭臂的连线进行偏转,所述中框的两对侧分别通过第二扭臂与外固定部连接以使中框能够沿着两个第二扭臂的连线进行偏转,并且所述两个第一扭臂的连线与两个第二扭臂的连线具有夹角。本实用新型所述的光学致动器的悬吊组件能够沿着两个相互独立而不干扰影响的旋转轴线进行偏转,旋转轴线不会发生偏移,能有效提高振动稳定性和精度,提高解析度的同时保障解析度的稳定性,确保光纤投影位置的稳定,提高投影效果。